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Tygervallei sentrum beraam die waarskynlikheidsverdeling van die aantal keer wat klante by winkels ingaan soos hieronder gegee. / Tygervalley centre estimates the probability distribution of the number of stores mall customers actually enter, as shown in the table.
X | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
P(X) | 0.04 | 0.19 | 0.22 | 0.28 | 0.12 | 0.09 | 0.06 |
Bereken die standaardafwyking van die aantal winkels wat deur klante besoek word. / Calculate the standard deviation of the number of stores entered by customers.
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